Abstract
The article emphasizes the relevance of using two-component fertilizers that are granules with a solid mineral core and porous organic shell. Influence of the temperature regime on formation of the shell porous structure is presented. Analytical dependencies are obtained from the differential equation of non-stationary thermal conductivity of Fourier for calculating the temperature profile and heating time of a two-layer granule “solid core–porous layer.” A feature of these equations is inclusion of the constraint thermal conductivity coefficient of the porous layer, which depends on the porosity of the layer, pore size, and its specific surface. Calculation results are presented and they prove influence of the granule porous structure on its thermal conductivity, temperature, and heating time. The choice of optimal temperature mode for the process of producing granules with the formed porous organic shell is grounded.
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Acknowledgements
This research work has been supported by the Ministry of Science and Education of Ukraine under the project “Small-scale energy-saving modules with the use of multifunctional devices with intensive hydrodynamics for the production, modification and encapsulation of granules,” project No. 0119U100834.
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Yukhymenko, M., Ostroha, R., Artyukhov, A., Bocko, J. (2020). Effect of Temperature on Formation of Nanoporous Structure of Granule Shell in Technology of Obtaining Organo-mineral Fertilizers. In: Fesenko, O., Yatsenko, L. (eds) Nanooptics and Photonics, Nanochemistry and Nanobiotechnology, and Their Applications . Springer Proceedings in Physics, vol 247. Springer, Cham. https://doi.org/10.1007/978-3-030-52268-1_12
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